Which practice is used to destroy and eliminate
all threats in the microbial world?

Intensive agriculture is resulting in the loss of ecosystem and is contributing to global warming.  

• An agricultural mechanization and intensification system, whose main objective is to increase the productivity from the accessible land via several means like heavy use of chemical fertilizers and pesticides is known as intensive agriculture.  

• The intensive agriculture is generally aimed to feed large population of humans, however, the method has contributed as one of the biggest threat to global environment, as it is resulting in the loss of ecosystem and global warming.  

• It is accountable for the 80 percent of the tropical deforestation and emergence of novel parasites and reemergence of the parasites, which were under control at one time.  

• The intensive farming hampers the beneficial plants and insects, and depletes and degrades the soil it relies upon.  

• It is resulting in soil erosion and is resulting in the genetic erosion of the livestock species and crops around the globe.  

Thus, intensive farming in order to feed large populations is eradicating the world agriculture slowly and gradually.

To know more about:

https://brainly.com/question/21649449

Answer:

- The virus binds to a receptor on a human cell’s membrane.

- The virus releases its RNA genome into the cell.

- The virus’s RNA is translated into proteins by the cell’s ribosomes.

- Viral RNA polymerase helps transcribe more copies of the virus’s RNA.

- New viruses travel to the cell membrane of the infected cell and are released outside the cell.

Explanation:

Coronaviruses are viruses from the family Coronaviridae (Order Nidovirales), which are structurally composed of positive-sense single-stranded RNA (ssRNA) genomes with a size of approximately 25 to 33 kilobases. Since the coronavirus genome consists of an ssRNA, they can be directly translated into protein inside infected host cells. The coronavirus that has caused the recent pandemic can enter into host cells through its spike (S) glycoprotein which binds to the Angiotensin-converting enzyme 2 (ACE2) receptor. Subsequently, this virus exploits the host molecular machinery to encode an RNA polymerase which is used to generate RNA from an RNA template. Finally, these RNAs are translated into all viral components (structural proteins) and new viruses are recruited to infected cells.

Answer:

cytosine

Explanation:

Guanine is one of the building blocks of DNA. It's the G in the A, C, G, or T. Guanine in the double helix pairs with cytosine, so you will see CG pairs; one on one strand and one on the other.

Answer:

In a DNA molecule, G pairs with C

Explanation:

Wish you luck! Have a good day~

Answer:

Spanish

Explanation:

Answer:

1) option a is correct. (260+270)/1545

(Note about this option: In the statement, it is written as (260+270) 1545. Lacks the division symbol, / )

2) From these results one can conclude that the two genes are linked (option a)

Explanation:

To know if two genes are linked, we must observe the progeny distribution. If heterozygous individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. If we observe a different distribution, phenotypes appearing in different proportions, we can assume linked genes in the double heterozygote parent.  

We might verify which are the recombinant gametes produced by the di-hybrid, and we will be able to recognize them by looking at the phenotypes with lower frequencies in the progeny. Phenotypes with the highest frequencies represent the parental gametes.

To calculate the recombination frequency, we will use the following formula: P = Recombinant number / Total of individuals.  

In the present example:

Parental)        YySs                        x                 yyss

Gametes)  YS parental type                        ys, ys, ys, ys

                 ys parental type

                 Ys recombinant type

                 yS recombinante type

The total number of individuals in the offspring: 1545

Phenotypic class Number of offspring  

According to this information, the phenotypic frequencies of the progeny differ from the phenotypic ratio 1:1:1:1. We can assume then, that these genes are linked.

The recombination frequency is:

P = Recombinant number / Total of individuals

P = 260 + 270 / 1545

P = 530/1545

P = 0.343

The genetic distance between genes is 0.343 x 100= 34.4 MU.

Answer:

leopard gecko

Explanation:

Answer:

you chose based off what i type

Explanation:

crested geckos need a vivarium and a uvb light but turn it off at night cause they are nocturnal they need stuff to climb on a hide and a clean cage the eat a powder mixed with water and crickets you can give them other bugs to they can jump from your hand to your arm if they want to they will drop there tail if scared they do not grow back also super cute

leopard geckos need a 20 gallon or bigger terrarium with uvb to turn off at night and a heat pad 24\7 make sure its no to hot leopard geckos need a variety of bugs like crickets and bubia roaches and other  and a clean tank and at least 2 hides they will drop there tail but they do grow back they just look a little different but are super cute

Answer:

hi

Explanation:

Answer:

D

Explanation:

LKM iF i AM CORRECT

Answer:

D) A and C

Explanation:

Gram staining is a laboratory technique used for bacterial species. It is used to differentiate between two groups of bacteria based on the components of their cell wall. Gram staining was developed by a scientist called Christian Gram in the year 1884. In the gram stain procedure, the following occurs:

- Due to the thick peptidoglycan component of their cell wall, GRAM POSITIVE bacteria retains the crystal violet due and stain VIOLET.

- On the contrary, due to the thin peptidoglycan component of their cell wall, GRAM NEGATIVE bacteria do not retain the crystal violet dye and hence stain, RED.

Based on this, a bacteria that has been gram stained has been tested for its GRAM REACTION and microscopic morphological characteristics, since it is a microbe.

Answer:

What conditions are necessary for a natural lake? Lakes form in a variety of ways when a natural depresion fills with water. The lake must have a source of water that is greater than the outflow and evaporation. It must be on earth that does not allow too much water to infiltrate.

Explanation:

Answer:

Lakes form in a variety of ways when a natural depression fills with water. The lake must have a source of water that is greater than the outflow and evaporation. It must be on earth that does not allow too much water to infiltrate.

Answer:

Insulin is composed of an A chain of 21 amino acids and a B chain of 30 amino acids. C-peptide is a peptide composed of 31 amino acids

Explanation:

Insulin is composed of an A chain of 21 amino acids and a B chain of 30 amino acids, the chains being held together by two disulfide bonds. A third disulfide bond is present within the A chain. Human insulin differs from porcine insulin by a single amino acid and from beef insulin by three amino acids.

Explanation:

Dashed circles around either an R or K indicate sites of peptidase cleavage that result in generation of the mature insulin that is comprised by two separate peptides: the A chain with 21 and the B chain with 30 amino acids. A third C peptide with 21 amino acids served as a linker between the A and B chains.

Answer:

(b) The interquartile range of B is greater than the interquartile range of A.

(d) The median of A is the same as the median of B.

Explanation:

Given

[tex]A = \{1, 4, 2, 2, 3, 1, 1, 2, 1\}[/tex]

[tex]10th\ run = 9[/tex]

So:

[tex]B = \{1, 4, 2, 2, 3, 1, 1, 2, 1,9\}[/tex]

Required

Select all true statements

(a) & (d) Median Comparisons

[tex]A = \{1, 4, 2, 2, 3, 1, 1, 2, 1\}[/tex]                         [tex]B = \{1, 4, 2, 2, 3, 1, 1, 2, 1,9\}[/tex]

[tex]n = 9[/tex]                                                         [tex]n = 10[/tex]

Arrange the data:

[tex]A = \{1, 1, 1, 1, 2, 2, 2,3, 4\}[/tex]               [tex]B = \{1,1,1,1,2,2,2,3,4,9\}[/tex]

                               [tex]Median = \frac{n + 1}{2}th[/tex]

[tex]Median = \frac{9 + 1}{2}th[/tex]                            [tex]Median = \frac{10 + 1}{2}th[/tex]

[tex]Median = \frac{10}{2}th[/tex]                              [tex]Median = \frac{11}{2}th[/tex]

[tex]Median = 5th[/tex]                                 [tex]Median = 5.5}th[/tex] --- average of 5th and 6th

[tex]Median = 2[/tex]                                    [tex]Median = \frac{2+2}{2} = 2[/tex]

Option (d) is correct because both have a median of: 2

(b) & (c) Interquartile Range Comparisons

[tex]A = \{1, 1, 1, 1, 2, 2, 2,3, 4\}[/tex]               [tex]B = \{1,1,1,1,2,2,2,3,4,9\}[/tex]

[tex]n = 9[/tex]                                                         [tex]n = 10[/tex]

First, calculate the lower quartile (Q1)

[tex]Q_1 = \frac{n + 1}{4}th[/tex][Odd n]             [tex]Q_1 = \frac{n}{4}th[/tex] [Even n]

[tex]Q_1 = \frac{9 + 1}{4}th[/tex]                            [tex]Q_1 = \frac{10}{4}th[/tex]

[tex]Q_1 = \frac{10}{4}th[/tex]                              [tex]Q_1 = 2.5[/tex]

[tex]Q_1 = 2.5th[/tex]                              

This means that:

[tex]Q_1 = 2nd + 0.5(3rd - 2nd)[/tex]              [tex]Q_1 = 2nd + 0.5(3rd - 2nd)[/tex]

[tex]Q_1 = 1 + 0.5(1- 1)[/tex]                   [tex]Q_1 = 1+ 0.5(1 - 1)[/tex]                      

[tex]Q_1 = 1[/tex]                                       [tex]Q_1 = 1[/tex]

Next, calculate the upper quartile (Q3)

[tex]Q_3 = \frac{3}{4}(n + 1)th[/tex] [Odd n]             [tex]Q_3 = \frac{3}{4}(n)th[/tex] [Even n]

[tex]Q_3 = \frac{3}{4}(9 + 1)th[/tex]                            [tex]Q_3 = \frac{30}{4}th[/tex]

[tex]Q_3 = \frac{30}{4}th[/tex]                                     [tex]Q_3 = 7.5th[/tex]  

[tex]Q_3 = 7.5th[/tex]                                    

This means that:

[tex]Q_3 = 7th + 0.5(8th- 7th)[/tex]           [tex]Q_3 = 7th + 0.5(8th- 7th)[/tex]

[tex]Q_3 = 2 + 0.5(3- 2)[/tex]                       [tex]Q_3 = 2+ 0.5(4 - 2)[/tex]                      

[tex]Q_3 = 2.5[/tex]                                       [tex]Q_3 = 3[/tex]

The interquartile range is  [tex]IQR = Q_3 - Q_1[/tex]

So, we have:

[tex]IQR = 2.5 - 1[/tex]                  [tex]IQR = 3 - 1[/tex]

[tex]IQR = 1.5[/tex]                       [tex]IQR =2[/tex]

(b) is true because B has a greater IQR than A

(e) This is false because some spread measures (which include quartiles and the interquartile range) changed when the 10th data is included.

The upper quartile and the interquartile range of A and B are not equal

Answer:

Explanation:

I would say A. Learning to ride a bicycle is a process of getting on and falling off. You have no idea how to do it properly without practice. That's learned.

But look out for D. I'm not sure that that isn't instinctive. Somewhere along the line I think even a baby knows not to let his/her eyes be touched. Is it learned? It's close but A is a much better answer.

The salmon is instinctive. The plant doesn't learn to turn towards the sun. It does so because more food is produced.

Yes, it's A.

A is the only option that is not instinctual. Riding a bicycle is something that has to be taught (and even if you weren't taught to ride a bike, you had to figure it out by trial and error.)

The other options are instinctual and reflexive responses. The salmon returning to the river is a behavior that is pretty much hard-wired into the salmon's brain. The plant turns to follow the sun because it is a source of light and energy.

The other user expressed uncertainty as to option D, but in fact, option D is very much a reflexive, instinctual response as well. To flinch or blink when something abruptly moves towards you is not a choice or something you have to be taught — it's a reflex, something you can't control.

Answer:

The electric charge generated by rubbing two suitable bodies and the transfer of electrons from one body to other

is called frictional electricity.

Answer:

they absorb water and minerals from the soil and use the energy of the sun to synthesize sugars (carbohydrates)

Answer:

F = 13.5 N

Explanation:

Answer:

I think the answer is D

Explanation:

Hope that helps!

Answer:

a) Side chains that can form hydrogen bonds are located on the outside of a protein, where they can stabilize tertiary structure by forming hydrogen bonds with water.

Explanation:

A hydrogen bond occurs between a hydrogen atom and four other elements. The side chain hydrogen bonds are resulted from the tertiary arrangement of structural components of the proteins.

The side chain hydrogen bond are present at the outside of the protein at places where the water forming the hydrogen bond can stabilize the tertiary structure.

Answer: From the question,the correct order of how hearing works is listed below:

--> sound wave is generated from hitting a key on a piano,

--> Incus moves,

--> Stapes moves,

--> Sound wave enters inner ear,

--> Fluid in the cochlea moves,

--> Fluid wave moves across Organ of corti based on frequency,

--> Ions enter hair cells,

--> hair cells bend,

--> auditory nerve transmits the signal to the auditory cortex,

--> auditory cortex recognizes the sounds.

Explanation:

In mammal, two ears are present on each side of the head. It is know as the organ for hearing and balance. The ear is divided into three regions:

--> OUTER EAR: This consists of pinna, ear canal, and eardrum( tympanic membrane)

--> MIDDLE EAR: This consists of the ear ossicles ( malleus, incus and stapes).

--> INNER EAR: This consists of Cochlea (organ of hearing) and semicircular canals (for balance).

To explain further on how we hear sounds, the vibrations of sounds produced from an external source move from the outer ear to the middle and then to the inner ear where the cochlea, the organ for hearing is located.

As sound wave is generated from hitting a key on a piano, the pinna collects the sound waves and directs them into the ear canal. Sound waves impinge on the tympanic membrane and makes it vibrate. This causes the malleus, incus and stapes (in this order) to move to-and -fro at the middle ear region.

In the inner ear region, sound wave enters inner ear as stapes pushes the oval window in-and-out. The vibrating oval window causes the fluid in the cochlea( perilymph) to move to-and -fro. Fluid wave moves across Organ of corti based on frequency. The pressure waves in the perilymph push the membrane separating the upper canal and the cochlear duct to-and-fro allowing ions to enter the hair cells. As a result, the hairs of the sensory cells between these two membranes bend causing nerve impulses to be sent to the brain through the cochlear part of the auditory nerve. Auditory nerve transmits the signal to the auditory cortex which recognizes the sounds.

Answer:

B halfway to the top of it's flight

Answer:

Explanation:

Affect peak flow and water volume, will heighten erosion potential and affect habitat and water quality. Increase storm water runoff, which can deliver more pollutants to water bodies that residents may rely on for drinking and recreation. To avoid all this Controlling the use of plastic bags will help to keep our surroundings clean. One should use recycled and eco-friendly products such as paper or jute bags instead of plastic bags. Throwing of plastic bags by the roadside only makes our surroundings dirty and unhygienic.

V

Explanation:

1. F

2.T

3.T

4.F

5.F

6.T

7.T

Answer:

Nitrogen is the chemical element with the symbol N and atomic number 7. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772. Although Carl Wilhelm Scheele and Henry Cavendish had independently done so at about the same time, Rutherford is generally accorded the credit because his work was published first. The name nitrogène was suggested by French chemist Jean-Antoine-Claude Chaptal in 1790 when it was found that nitrogen was present in nitric acid and nitrates. Antoine Lavoisier suggested instead the name azote, from the Greek"no life", as it is an asphyxiant gas; this name is instead used in many languages, such as French, Italian, Russian, Romanian, Portuguese and Turkish, and appears in the English names of some nitrogen compounds such as hydrazine, azides and azo compounds.

Explanation:

Answer:

Hormones act only on cells not structures.

Explanation:

Hormones act only on cells and they  do not act on other structures because there are specific cells have receptors for that particular hormone. Some hormones bind itself to the receptors on the surface of target cells whereas other hormones enter the cells and bind itself to the receptors present in the cytoplasm or nucleus of the cell.

Answer:

.0625 or 6.25%

Explanation:

Answer:

4 quadrants are created to pick up or isolate pure colonies of microbes.

Answer:

The correct answer is - increase, increase.

Explanation:

In some neurodegenerative diseases, some lower motor neuron cells die and the remaining lower motor neurons continuing the process of the vacated dead motor neuron cells to innervate the neuron and muscle synapses.

The size of the motor unit increases and due to the innervations of the new axon

increases the strength of the muscle contraction occurred by individually activating each surviving motor neuron. Here multiple motor units will be controlled by a single neuron.